CI: Enable the mac-scons build

.github/workflows/ci.yml

@@ -44,24 +44,24 @@
 				}
 			]
 		},
-		# macos-scons: {
-		# 	runs-on: macos-10.15,
-		# 	steps:  [
-		# 		{
-		# 			name: checkout,
-		# 			uses: actions/checkout@v2,
-		#			with: { submodules: true }
-		# 		},
-		# 		{
-		# 			name: install dependencies,
-		# 			run: brew install scons SFML Boost
-		# 		},
-		# 		{
-		# 			name: build and unit test,
-		# 			run: ./.github/workflows/scripts/mac/scons-build.sh
-		# 		}
-		# 	]
-		# },
+		macos-scons: {
+			runs-on: macos-10.15,
+			steps:  [
+				{
+					name: checkout,
+					uses: actions/checkout@v2,
+				with: { submodules: true }
+				},
+				{
+					name: install dependencies,
+					run: brew install scons SFML Boost
+				},
+				{
+					name: build and unit test,
+					run: ./.github/workflows/scripts/mac/scons-build.sh
+				}
+			]
+		},
 		win-vs32: {
 			runs-on: windows-2019,
 			steps: [

.github/workflows/scripts/mac/scons-build.sh

@@ -2,5 +2,6 @@
 
 export CC="$(brew --prefix llvm)/bin/clang"
 export CXX="$(brew --prefix llvm)/bin/clang++"
+export SDKROOT="$(xcrun --show-sdk-path)"
 
 scons CXXFLAGS="-I/usr/local/opt/zlib/include" LINKFLAGS="-L/usr/local/opt/zlib/lib"